This isn't a recommendation, but I had to chuckle and tell the story...
My daughter and I were sitting in the deer blind a few weeks ago. A coyote walks out and sits in the shade for a minute or two. My daughter's to slow to get the gun in position so he dissapears into the brush.
While we wait, she downloads a dying rabbit call on her i-phone, holds it just outside the window and plays it. ...coyote makes an appearance. His last I might add.
is a good one. I have an older cassette driven unit that was a hand-me-down. But, it works.